Just wanted to pass on some info. Have heard this amp in 3 different places and in all 3 a similar theme was that power conditioning is more important with this amp than any other they've had. I read an article somewhere that implied that due to the digital architecture this amp needs clean power to sound its best, and this seems to have been backed up by the dealers/owners I've spoken to. So make sure you've got clean power before making any final conclusions on this amp. Also, using them in monoblock pairs was also said to bring this amp to a much higher level. For what it's worth.
Tim
Tim